The coordination and distribution of B in foraminiferal calcite
The isotopic ratio and concentration of B in foraminiferal calcite appear to reflect the pH and
bicarbonate concentration of seawater. The use of B as a chemical proxy tracer has the …
bicarbonate concentration of seawater. The use of B as a chemical proxy tracer has the …
Decoupled carbonate chemistry controls on the incorporation of boron into Orbulina universa
EL Howes, K Kaczmarek, M Raitzsch, A Mewes… - …, 2017 - bg.copernicus.org
In order to fully constrain paleo-carbonate systems, proxies for two out of seven parameters,
plus temperature and salinity, are required. The boron isotopic composition (δ 11 B) of …
plus temperature and salinity, are required. The boron isotopic composition (δ 11 B) of …
Boron isotopes and B/Ca in benthic foraminifera: Proxies for the deep ocean carbonate system
Accurate records of the state of the ocean carbonate system are critical for understanding
past changes in pCO2, ocean acidification and climate. The chemical principles underlying …
past changes in pCO2, ocean acidification and climate. The chemical principles underlying …
Experimental evidence for kinetic effects on B/Ca in synthetic calcite: implications for potential B (OH) 4− and B (OH) 3 incorporation
The boron to calcium ratio (B/Ca) in biogenic CaCO 3 is being increasingly utilized as a
proxy for past ocean carbonate chemistry. However, B/Ca of cultured and core-top …
proxy for past ocean carbonate chemistry. However, B/Ca of cultured and core-top …
[HTML][HTML] Seawater pH control on the boron isotopic composition of calcite: evidence from inorganic calcite precipitation experiments
A Sanyal, M Nugent, RJ Reeder, J Bijma - Geochimica et Cosmochimica …, 2000 - Elsevier
Experiments involving boron co-precipitation with calcite have been carried out inorganically
under controlled pH conditions (7.9±0.05, 8.3±0.05 and 8.6±0.05) to determine the …
under controlled pH conditions (7.9±0.05, 8.3±0.05 and 8.6±0.05) to determine the …
Reconstructing ocean pH with boron isotopes in foraminifera
In order to better understand the effect of CO2 on the Earth system in the future, geologists
may look to CO2-induced environmental change in Earth's past. Here we describe how CO2 …
may look to CO2-induced environmental change in Earth's past. Here we describe how CO2 …
[HTML][HTML] Assessing the impact of diagenesis on δ11B, δ13C, δ18O, Sr/Ca and B/Ca values in fossil planktic foraminiferal calcite
The geochemical composition of foraminiferal tests is a valuable archive for the
reconstruction of paleo-climatic,-oceanographic and-ecological changes. However …
reconstruction of paleo-climatic,-oceanographic and-ecological changes. However …
Calcification and growth processes in planktonic foraminifera complicate the use of B/Ca and U/Ca as carbonate chemistry proxies
Although boron and uranium to calcium ratios (B/Ca, U/Ca) in planktonic foraminifera have
recently received much attention as potential proxies for ocean carbonate chemistry, the …
recently received much attention as potential proxies for ocean carbonate chemistry, the …
Benthic foraminiferal B/Ca ratios reflect deep water carbonate saturation state
J Yu, H Elderfield - Earth and Planetary Science Letters, 2007 - Elsevier
Boron/calcium ratios were measured in four benthic foraminiferal species (three calcitic:
Cibicidoides wuellerstorfi, Cibicidoides mundulus, and Uvigerina spp., and one aragonitic …
Cibicidoides wuellerstorfi, Cibicidoides mundulus, and Uvigerina spp., and one aragonitic …
Evaluating the planktic foraminiferal B/Ca proxy for application to deep time paleoceanography
Abstract The Cenozoic Era has been characterized by large perturbations to the oceanic
carbon cycle and global climatic changes, but quantifying the magnitude and cause of these …
carbon cycle and global climatic changes, but quantifying the magnitude and cause of these …